Question about 1985 Chevrolet Chevy

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Speedometer I have a 1985 Chevy 454 V8 motorhome. The speedometer is not working. I disconnected the speedometer cable at the transmission, attached an electric drill and the speedometer works. So the cable isn't broken. How do I access the speedometer gear unit in the transmission to repair or replace? Any help will be greatly appreciated. Wayne Rideout

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  • Anonymous Mar 23, 2014

    always leaking transmission fluid where the speedometer cable attaches to side of tranny

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There is a clamp that either needs to be removed (10mm bolt holds it on) or on some transmisions it's an O-Ring that allows you to remove the speedo gear.

remove the speedo gear and bring it to the parts store so they can match up the identical amount of teeth so that the new one will not make your speedo run fast or slow. The gears are color coded however i have seen many instances where aftermarket ones have thier own color scheme and the convert charts are inaccurate so count the teeth

Posted on Jan 08, 2009

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